Email sent

Introduction

Send outgoing mail through a secured port on your modem

The Comcast Customer Security Assurance Team recommends configuring your outgoing mail server settings to a secured port. If you use an email client (for example; Outlook, Outlook Express, or Thunderbird) and send through a third-party domain/server (for example, Gmail) using Simple Mail Transfer Protocol (SMTP), you may be unable to send email if a block has been placed on port 25 within your client. If this is the case, you will receive the message shown here:

This can be resolved by configuring the email client to send via alternate port 587 or 465, secured ports that require authentication.

Configure your email client to send email through port 587 or 465

The steps for accessing these settings will differ depending on your email client.